The following method of engine compression test applies to the K10B engine and the K12B engine.
Note. Engine is to be at normal operating temperature.
Remove
- 1. Release air cleaner housing from cylinder head cover • Pull off to release 2x rubber locator
- 2. Remove air cleaner housing and air cleaner element from cover (1) • Release air cleaner housing from cover – Release 2x clip (2), 2x locator
- 3. For K10B engine, disconnect 3x harness connector (2) from 3x ignition coil module (3)
- 4. For K12B engine, disconnect 4x harness connector (2) from 4x ignition coil module (3)
- 5. For K10B engine remove 3x ignition coil module from 3x spark plug • Remove 3x bolt (1)
- 6. For K12B engine, remove 4x ignition coil module from 4x spark plug • Remove 4x bolt (1)
- 7. For K10B engine, remove 3x spark plug from cylinder head • Use Spark Plug Wrench KM-194-E
- 8. For K12B engine, remove 4x spark plug from cylinder head • Use Spark Plug Wrench KM-194-E
Measure
- 9. Install Compression Test Adapter EN-49118 (2) to Adapter EN-49119 (1)
- 10. Install adapter assembly (1) to spark plug hole of No. 1 cylinder
- 11. Install compression tester (2) (commercially available) to adapter assembly
- 12. Crank engine and measure compression for cylinder No. 1
Note. Standard pressure is 1300 kPa (1.3 bar) . Minimum permissible pressure is 1000 kPa (1 bar) .
- 13. Remove compression tester from adapter assembly
- 14. Remove adapter assembly from spark plug hole of No. 1 cylinder
- 15. Repeat procedure for cylinders No. 2, No. 3 and No. 4
Note. Maximum permissible pressure difference between any two cylinders is 100 kPa (1 bar) .
Install
- 16. For K10B engine, install 3x new spark plug to cylinder head 18 Nm • Use Spark Plug Wrench KM-194-E
- 17. For K12B engine, install 4x new spark plug to cylinder head 18 Nm • Use Spark Plug Wrench KM-194-E
- 18. For K10B engine, install 3x ignition coil module (3) to 3x spark plug • Install 3x bolt (1) 11 Nm
- 19. For K12B engine, install 4x ignition coil module (3) to 4x spark plug • Install 4x bolt (1) 11 Nm
- 20. For K10B engine, connect 3x harness connector (2) to 3x ignition coil module
- 21. For K12B engine, connect 4x harness connector (2) to 4x ignition coil module
- 22. Install air cleaner element and air cleaner housing to cover (1) • Secure cover to air cleaner housing – Secure 2x locator, then secure 2x clip (2)
- 23. Secure air cleaner housing to cylinder head cover • Push on to secure 2x rubber locator